code: def test_paddle_pixel_unshuffle(
      *,
      dtype_and_x,
      factor,
      data_format,
      on_device,
      fn_tree,
      frontend,
      test_flags,
      backend_fw,
  ):
      input_dtype, x = dtype_and_x
      if data_format == "NCHW":
          assume(ivy.shape(x[0])[2] % factor == 0)
          assume(ivy.shape(x[0])[3] % factor == 0)
      else:
          assume(ivy.shape(x[0])[1] % factor == 0)
          assume(ivy.shape(x[0])[2] % factor == 0)
      helpers.test_frontend_function(
          input_dtypes=input_dtype,
          frontend=frontend,
          test_flags=test_flags,
          fn_tree=fn_tree,
          on_device=on_device,
          x=x[0],
          downscale_factor=factor,
          data_format=data_format,
          backend_to_test=backend_fw,
      )
  
file_path: ivy/ivy_tests/test_ivy/test_frontends/test_paddle/test_nn/test_functional/test_vision.py
imports: import ivy
  from hypothesis import assume, strategies
  import ivy_tests.test_ivy.helpers
  from ivy_tests.test_ivy.helpers import handle_frontend_test
label_desc: Use image node_id 6 for calling a global function with example usage: test_paddle_pixel_unshuffle() without return types